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Multi Type Air Conditioner

SERVICE MANUAL

CAUTION

website http://www.lgservice.com

e-mail http://www.lgeservice.com/techsup.html

• BEFORE SERVICING THE UNIT, READ THE SAFETY

PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

MODEL: Indoor Unit: Wall Mounted Type

TMNC092DYAA

TMNC122DYAA

TMNC182D5AA

TMNC242D5AA

TMNC092TYAA

TMNC122TYAA

TMNC182T5AA

TMNC242T5AA

TMNH092DYAA

TMNH122DYAA

TMNH182D5AA

TMNH242D5AA

TMNH092TYAA

TMNH122TYAA

TMNH182T5AA

TMNH242T5AA

Outdoor Unit: T2UC182FAA

T2UC242FAA

T2UC362FAA

T2UC482FAA

T2UH242FAA

T2UH362FAA

T2UH482FAA

T2UH182FAA

Содержание T2UC182FAA

Страница 1: ...NS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL MODEL Indoor Unit Wall Mounted Type TMNC092DYAA TMNC122DYAA TMNC182D5AA TMNC242D5AA TMNC092TYAA TMNC122TYAA TMNC182T5AA TMNC242T5AA TMNH092DYAA TMNH122DYAA TMNH182D5AA TMNH242D5AA TMNH092TYAA TMNH122TYAA TMNH182T5AA TMNH242T5AA Outdoor Unit T2UC182FAA T2UC242FAA T2UC362FAA T2UC482FAA T2UH242FAA T2UH362FAA T2UH482FAA T2UH182FAA ...

Страница 2: ...on Cycle Diagram 12 Wiring Diagram 13 Electronic Control Device 14 Schematic Diagram 17 Functions 19 Operation Details 22 Disassembly 26 2 way 3 way Valve 29 Cycle Troubleshooting Guide 33 Installation 39 Flaring work and connection of piping 42 Connecting the Cable Between Indoor Unit and Outdoor Unit 47 Exploded View and Replacement Parts List 49 ...

Страница 3: ...on Be sure not to do Be sure to follow the instruction Do not use a defective or underrated circuit breaker Use this appliance on a dedi cated circuit There is risk of fire or electric shock Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Always ground the product There is risk o...

Страница 4: ...d Service Center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand It may cause injury accident or dam age to the product Be sure the installation area does not deteriorate with age If the base collapses the air condition er could fall with it causing property damage product failure and personal injury Do not touch operate the pro...

Страница 5: ... shock or product fail ure Be cautious that water could not enter the product There is risk of fire electric shock or product damage Do not store or use flammable gas or com bustibles near the product There is risk of fire or failure of product If strange sounds or smell or smoke comes from product Turn the breaker off or discon nect the power supply cable There is risk of electric shock or fire G...

Страница 6: ...p on or put anyting on the product outdoor units There is risk of personal injury and failure of product Do not insert hands or other objects through the air inlet or outlet while the product is oper ated There are sharp and moving parts that could cause personal injury CAUTION Installation Wax Thinner check for gas refrigerant leakage after installation or repair of product Low refrigerant levels...

Страница 7: ... i t c e n n o C g n i p i P h c n i m m s a G s b l g k r o o d n I t h g i e W t e N h c n i m m D H W s n o i s n e m i D h c n i m m D H W n o i s n e m i D g n i k c a P Model TMNH092DYAA TMNH122DYAA d e t n u o m l l a W e p y t t i n u r o o d n I 1Ø 220V 60Hz 1Ø 220V 60Hz 0 27 0 20 CFF RP15C 1 WEILING RP15C 1 WEILING 42 8 4 7 6 6 4 296 5 268 3 225 9 7 6 5 247 1 211 8 176 5 0 9 400 20FPI S ...

Страница 8: ...m 801 555 262 870 655 320 Packing dimensions W H D Outdoor unit mm 960 610 384 1002 700 422 kg lbs 50 110 63 139 Rotary Rotary 1 2 QJ278KDF QK185KBK LG LG SUNISO 4GSI SUNISO 4GSI MOTOR TYPE PSC PSC Oil charge cc 410 350 Tube size OD inch mm 0 276 7 0 0 276 7 0 18 18 2R 24C 2R 28C Model YGK25 6A 9 KFD 60K11 No of poles 6 6 CMM CFM 49 1398 40 1142 Propeller Propeller No used dia EA inch mm 1 18 1 46...

Страница 9: ...Service Manual 9 Dimensions Dimensions Installation plate D H W m m W m m H m m D Model Dimension Indoor Unit TMN 122DYAA TMNH092DYAA 840 270 161 840 270 161 H ...

Страница 10: ...A W D L1 L2 L9 L4 L3 H L10 L10L10 L8 L7 L5 L6 801 m m W 555 m m H 262 m m D 339 m m 1 L 37 m m 2 L 543 6 m m 3 L 11 4 m m 4 L 591 m m 5 L 105 m m 6 L 105 m m 7 L 72 5 m m 8 L 74 5 m m 9 L 79 m m 0 1 L T2UH182FAA MODEL DIM Gas side 3 way valve Liquid side 2 way valve ...

Страница 11: ...9 L4 L3 H L10 L10L10 L8 Gas side 3 Way valve Liquid side 2 Way valve L7 L5 L6 870 m m W 655 m m H 0 2 3 m m D 0 7 3 m m 1 L 5 2 m m 2 L 630 m m 3 L 5 2 m m 4 L 6 4 5 m m 5 L 0 6 1 m m 6 L 0 6 1 m m 7 L 55 m m 8 L 80 m m 9 L 0 5 m m 0 1 L T2UH242FAA MODEL DIM ...

Страница 12: ...12 Multi Air Conditioner Refrigeration Cycle Diagram Refrigeration Cycle Diagram T2UH182FAA T2UH242FAA 12K 12K A B Indoor Side Outdoor Side A Comp B Comp Refrigerent Flow Cooling Heating ...

Страница 13: ...al Wiring Diagram Wiring Diagram Indoor Unit Outdoor Unit T2UH242FAA 2 T2UH182FAA 1 FAN B P1 B P2 B C EBY49965301 RD BRYL 2 BK WH 1 BLRD BL RD WH BL BK BL OR BL BL BL WH TB B C BL BR BR BR BR BK EBY49965302 3 4 TB L N ...

Страница 14: ...14 Multi Air Conditioner Electronic Control Device Electronic Control Device Indoor Unit MAIN P C B ASM TOP VIEW BOTTOM VIEW ...

Страница 15: ...Service Manual Electronic Control Device Outdoor Unit 15 ...

Страница 16: ...Multi Air Conditioner Electronic Control Device Display P C B ASM 16 ...

Страница 17: ...12 4 1 2 3 16 15 14 13 2 4 3 5 4WAY KID65004AF 8 7 5 6 9 10 11 IC02M 1 CN L R DC PART STEPPING MOTOR LEFT RIGHT Option 1 INT RELAY CONNECTION CN TH1 10K R05H R02H 12 1K 1 R04H 6 2K 1 5V PIPE TH R02F 1 1 4 4 2 2 3 3 ROOM TH 50V 5V 3 10uF C02A IC01A 1 3 6V S7136 2 KIA7036P R05L 56K R02A 4 7K CN MOTOR 3 3 FAN INDOOR MOTOR 3 4 R12L 5 1K receiver 680pF 50V 12K R04L 1 6W 5V C11L AXIAL 5V PKM13EPY 4002 R...

Страница 18: ...Schematic Diagram 18 Multi Air Conditioner ...

Страница 19: ...an at low speed The fan is switched to low Cooling med Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed The louver can be set at the desired position or swing up and down automatically Wall mounted type Operation ON OFF by Remote controller Sensing the Room Temp...

Страница 20: ... JET COOL Sleep Operation Airflow Direction Control Cooling model only TEMPERATURE LOW HIGH Cooling Operation Mode Heating Operation Mode Fan Operation Mode Energy Saving Mode Fan Speed Selection Low Med High CHAOS Cancel Sleep Mode Timer ON or Timer OFF 1 2 3 4 5 6 7 Off Timer Fan Operates without cooling or heating Cooling Down to 18 C Up to 30 C 20 ...

Страница 21: ...lowing table If more than two troubles occur simultaneously primarily the highest trouble fo error code is expressed After error occurrence if error is released error LED is also released simultaneously To operate again on the occurrence of error code 12 be sure to pull out power cord and then re insert Having or not of error code is different from Model l e d o M g n i l o o C 3sec 3sec 3sec once...

Страница 22: ...p 0 5 C Compressor OFF Temp Setting Temp 0 5 C Whilein compressorrunning operating with the speedset by the remote control Whilein compressor Health When the operation input by the remote control is received the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature 26 C Intake Air Temp 25 C 24 C Intake Air Temp 26 C Intake Air Temp 1 C...

Страница 23: ...d at super high speed for 30 min at cooling mode operation In the Jet Cool mode operation the room temperature is controlled to the setting temperature 18 C When the sleep timer mode is input while in the Jet Cool mode operation the Jet Cool mode has the priority When the Jet Cool key is input the upper lower vanes are reset to those of the initial cooling mode and then operated in order that the ...

Страница 24: ...le in cool ing cycle operation mode the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting When the indoor pipe temp is 7 C or higher after 3 min pause of the compressor the compressor and the outdoor fan is turned on according to the condition of the room temperature Buzzer Sounding Operation When the appliance operation key is input by the ...

Страница 25: ...25 Service Manual Operation Details Remote Control Operations ...

Страница 26: ...sis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the other end Earth Conductor 26 Multi Air Conditioner ...

Страница 27: ...ully 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA Screw When repair do not damage the Caution label Service Manual 27 ...

Страница 28: ...ew Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self aligning bearing Motor cover Bearing Cross flow fan 28 Multi Air Conditi...

Страница 29: ...n Closed Open Open Transfering clockwise counter clockwise connected manifold gauge Evacuation Open Open Open Servicing with charging cylinder Gas charging Open Open Open Servicing with charging cylinder Pressure check Open Open Open Servicing with charging cylinder Gas releasing Open Open Open Servicing with charging cylinder 3 2 1 4 5 6 Flare nut To piping connection Open position Closed positio...

Страница 30: ...Low handle valve on the gauge slightly to air purge from the hose 5 Set the liquid side valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the gas side valve to the closed position Do this quickly so that the gauge ends up indi cating 1kg g 8 Disconnect the charge set and mount the liquid side and gas sid...

Страница 31: ... Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less 6 Close the Low handle of the gauge turn off the vacuum pump and confirm that the gauge nee dle does not move approximately 5 minutes after turning off the vacuum pump 7 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or deplet ed replenish as needed 8 Mount the val...

Страница 32: ... air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the gas side valve s service port Stopping partway will allow the gas to be dis charged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air condition...

Страница 33: ...n cycle Notice 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty Temp difference approx 0 C Current less than 80 of rated current Temp difference approx 8 C Current less than 80 of rated current Temp difference less than 8 C Current over the rated current Temp diffe...

Страница 34: ...onnection housing for contacting Connector related to CN NI RY COMP NO 3 Connector related to CN MOTOR Connector contacting of Outdoor Fan Compressor Display PCB Assembly Check Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of related connector Main PCB Board Operation Check Items SMPS Transformer Indoor unit Input Voltage Output Voltage C03D IC01D 7805...

Страница 35: ...he contact of CN DISP1 connector When the compressor stopped Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by force Check Display PCB Assembly Voltage between CN DISP1 DC 5V Check the connecting circuit between the remote controller MICOM No R16 1 5k IR LED TR R17...

Страница 36: ...or Outdoor Fan is stopped Check the related circuit of RY FAN Check the indoor temperature sensor is disconnected or not About 10kΩ at 25 C Turn off Main Power Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Check the open or short of conmecting wires between indoor and outdoor Check Relay RY COMP for driving compre...

Страница 37: ...ed circuit of indoor Fan Motor The pin NO 58 of Micom and the part for driving TRIAC the input and output signal of IC01M PIN NO 1 16 Check the pattern Check the TRIAC TRIAC Open Indoor Fan Motor never operate TRIAC short Indoor Fan Motor always operates in case of ON or OFF When indoor Fan does not operate The voltage of PIN NO 1 orange and 3 yellow of CN MOTOR About AC 180V over About AC 50V ove...

Страница 38: ...N U D Connector If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver When Vertical Louver does not operate Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pin RED of CN U D and GND Confirm that there is a soldering short at following terminals Between...

Страница 39: ...n the path of the warm air 4 Take the air conditioner weight into account and select a place where noise and vibration are minimum 5 Select a place so that the warm air and noise from the air conditioner do not disturb neighbors Rooftop Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the un...

Страница 40: ...Multi Air Conditioner Installation 40 ...

Страница 41: ...tra refrigerant Extended length Rated length x Additional refrigerant 7 5m A B 7 5m Installation of the outdoor unit on an upper position Installation of the outdoor unit on a lower position A B 7 5m 7 5m Model Outdoor unit T2UH182FAA 7 5m 15m 15m 30m A B T2UH242FAA Standard length A B Max piping length of each indoor unit A B C Max total piping length 1 2 12 7mm 1 4 6 35mm 7 5 15 3 8 9 52mm 1 4 6...

Страница 42: ...l as shown below Burr removal Completely remove all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe in a downward direc tion as you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work...

Страница 43: ...ating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Indoor unit installation Hook the indoor unit onto the upper portion of the installa tion plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure that the hooks are properly seated on the installa tion plate by moving it left and right P...

Страница 44: ...nd the connect ing cable into the piping hole Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy connection later Indoor unit installation Hang the indoor unit from the hooks at the top of the instal lation plate Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the ...

Страница 45: ... hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Reroute the pipings and the drain hose across the back of the chassis Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassi...

Страница 46: ...orque wrench ensure the direction for tightening follows the arrow on the wrench Bad case Following bending type from right to left could cause problem of pipe damage Connection of the pipes Outdoor mm inch kg m Ø6 35 1 4 1 8 Ø9 52 3 8 4 2 Ø12 7 1 2 5 5 Ø15 88 5 8 6 6 Ø19 05 3 4 6 6 Outside diameter Torque Outdoor unit Gas side piping Bigger diameter Liquid side piping Smaller diameter Torque wren...

Страница 47: ...l from the unit by loosening the screw Connect the wires to the terminals on the control board individually as the following 2 Secure the cable onto the control board with the hold er clamper 3 screw 4 Use a recongnized circuit breaker between the power source and the unit A disconnection device to ade Connect the cable to the Indoor unit Connecting the cable between indoor unit and outdoor unit S...

Страница 48: ... CSA certified The power connecting cable connected to the indoor and outdoor unit should be complied with the following specifications GN YL 20mm GN YL 20mm GN YL 20mm 0 75 Cable Type B H07RN F NORMAL CROSS SECTIONAL AREA Grade mm2 T2UH182FAA T2UH242FAA 2 5 2 5 Cable Type B H07RN F H07RN F NORMAL CROSS SECTIONAL AREA Grade mm2 T2UH182FAA T2UH242FAA 48 Multi Air Conditioner ...

Страница 49: ...s List Exploded View and Replacement Parts List 342800 263230 359011 131410 135316 135311 35211B 346810 135516 354210 1 W0CZZ 267110 Indoor Unit Service Manual 49 135515 354210 2 352111 352116 352115 267110 For model DYAA For model D5AA ...

Страница 50: ...View and Replacement Parts List 649950 554160 554160 349600 554031 546810 559010 447910 435301 430410 435511 W6640 1 349480 552203 1 552203 2 552203 3 552116 552111 1 W6640 2 552111 2 435512 437211 437212 268711 1 268711 2 263230 ...

Страница 51: ...P No December 2007 Printed in China ...

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